Jeremiah 29:11-13 -  

For I know the plans I have for you, declares the Lord, plans for welfare and not for evil, to give you a future and a hope. Then you will call upon me and come and pray to me, and I will hear you. You will seek me and find me, when you seek me with all your heart.

https://www.biblegateway.com/passage?search=Jeremiah%2029:11-13&version=ESV